Handrail connecting mechanism

Abstract

The utility model discloses an armrest connecting mechanism and a seat, the armrest connecting mechanism comprises a lifting armrest module and a mounting seat arranged on the seat, the lifting armrest module comprises a connecting seat and an armrest capable of ascending and descending on the connecting seat; a positioning structure and a splicing structure are arranged between the mounting seat and the connecting seat, and the positioning structure comprises an inserting part and an inserting groove which are arranged between the mounting seat and the connecting seat; the splicing structure comprises a first splicing part and a second splicing part which are arranged between the mounting seat and the connecting seat, a screw hole is formed in the second splicing part, and a through hole corresponding to the screw hole in position is formed in the first splicing part; the positioning effect is achieved on the combination of the connecting seat and the mounting seat through the matching of the inserting part and the inserting groove in the positioning structure, so that the screw hole and the through hole in the splicing structure are quickly aligned, the handrail module is kept stable on the mounting seat by virtue of the positioning structure during mounting, and a threaded fastener is conveniently locked into the splicing structure; and the assembling efficiency and quality of the armrest and the seat are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of seat, especially handrail connecting mechanism and seat. BACKGROUND

[0002] In order to meet the arm needs of different users, the armrest with lifting function is installed on the office chair or ergonomic chair, which is usually arranged on the left and right sides of the chair body and can be moved along the longitudinal direction and then stopped at the corresponding position, thereby forming support for the arms of the user.

[0003] In order to ensure the rapid assembly of the armrest and the seat, most of the existing lifting armrests are pre-connected to a base through sliding, and the base is connected to the seat through screws. For example, in the armrest patent with the announcement number CN210018589, the armrest cover (equivalent to the armrest) and the armrest body (equivalent to the base) are connected through longitudinal sliding, the mounting end of the armrest body is provided with a plurality of mounting holes, the mounting holes are aligned with the screw holes on the seat, and screws are arranged, thereby installing the armrest with lifting and adjusting functions on the seat. However, due to the lack of positioning between the base and the seat, the armrest is easy to shake when locking the screws, and the connection position of the base needs to be manually adjusted constantly to align the mounting holes with the screw holes, which greatly affects the assembly efficiency and quality of the armrest. SUMMARY

[0004] The utility model provides a kind of handrail connecting mechanism and seat, and the positioning effect is formed by the cooperation of the plug-in part in positioning structure and the slot to the combination of connecting seat and mounting seat, the screw hole and through hole on splicing structure are quickly aligned, when installing, armrest module is kept stable on mounting seat by positioning structure, it is convenient for thread fastener to lock into splicing structure, and the assembly efficiency and quality of armrest and seat are improved.

[0005] The technical scheme of the utility model is as follows:

[0006] A kind of handrail connecting mechanism, including lifting armrest module and the mounting seat for being arranged on seat, lifting armrest module includes connecting seat, the armrest that can be lifted on connecting seat;Positioning structure and splicing structure are arranged between mounting seat and connecting seat, positioning structure includes the plug-in part being arranged on one of mounting seat and connecting seat, the slot being arranged on the other of mounting seat and connecting seat;Splicing structure includes the first splicing part being arranged on one of mounting seat and connecting seat, the second splicing part being arranged on the other of mounting seat and connecting seat, and the screw hole is arranged on second splicing part, and the through hole corresponding with the position of screw hole is arranged on first splicing part;

[0007] The plug-in part is inserted into the slot, and the screw hole is aligned with the through hole, the thread fastener is passed through the through hole and locked into the screw hole, and the lifting armrest module is connected with the mounting seat.

[0008] Preferably, the insertion slot and the second splicing part are arranged on the connecting base, and the insertion part and the first splicing part are arranged on the mounting base.

[0009] Preferably, the insertion part is arranged at the upper end of the mounting base and extends longitudinally, the connecting base is provided with a matching part extending towards the mounting base, and the insertion slot is arranged at the lower end of the matching part and corresponds to the position of the insertion part; after the longitudinally extending insertion part is inserted into the insertion slot, the entire lifting handrail module can be kept stable on the mounting base, and the threaded fastener can be locked into the threaded hole.

[0010] Preferably, a guide mounting structure is arranged between the mounting base and the connecting base, the guide mounting structure comprises a longitudinal guide slot arranged on one of the mounting base and the connecting base, and a guide part arranged on the other of the mounting base and the connecting base, the guide part slides in the longitudinal guide slot to enable the insertion part to be inserted into the insertion slot; thereby improving the smoothness and efficiency of assembly.

[0011] Preferably, the first splicing part extends towards the connecting base in the transverse direction, and the second splicing part extends towards the mounting base in the transverse direction, the first splicing part and the second splicing part are overlapped in the up-down direction to align the threaded hole with the through hole.

[0012] Preferably, the mounting base comprises a first cover, the first splicing part and the insertion part are arranged in the first cover, the connecting base comprises a second cover, the second splicing part and the insertion slot are arranged in the second cover, when the insertion part is inserted into the insertion slot and the threaded hole is aligned with the through hole, the first cover and the second cover are combined into one shell to shield the splicing structure and the positioning structure; thereby ensuring that the appearance of the seat is simple and elegant.

[0013] Preferably, a position corresponding to the splicing structure on the shell is open outward, a stopper is arranged on the outwardly open position of the shell, the stopper is provided with an avoiding hole corresponding to the position of the threaded hole, the threaded fastener passes through the avoiding hole and the through hole and is locked into the threaded hole, and the stopper encloses the splicing structure in the shell; thereby avoiding that the splicing structure exposed affects the appearance of the seat.

[0014] Preferably, a loosening prevention assembly is arranged between the stopper and the splicing structure, the loosening prevention assembly comprises an insertion column arranged on the stopper, a first insertion hole and a second insertion hole arranged on the first splicing part and the second splicing part respectively, and the first insertion hole, the second insertion hole and the insertion column correspond in position; the insertion column is inserted into the first insertion hole and the second insertion hole to prevent the stopper from loosening relative to the splicing structure.

[0015] Preferably, the connecting base is provided with a mounting slot open at the upper end and extending in the vertical direction, the mounting slot is provided with a handrail assembly, and the handrail assembly comprises a sleeve fixedly connected in the mounting slot, and the handrail is connected in the sleeve.

[0016] A seat comprises the handrail connecting mechanism.

[0017] The handrail connecting mechanism has the advantages that:

[0018] The handrail connecting mechanism has the advantages that:

[0019] The first cover shell and the second cover shell are opposite to each other and form a shell body for covering the positioning structure and the splicing structure, so that the shell body can cover the positioning structure and the splicing structure, and the appearance of the seat is simple and elegant after the handrail is connected to the seat. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is an exploded view of the handrail connecting mechanism;

[0021] Figure 2 is an exploded view of the handrail connecting mechanism from another angle;

[0022] Figure 3 is an exploded view of the stop block and the shell body;

[0023] Figure 4 is a structural view of the handrail connecting mechanism;

[0024] Figure 5 is a structural view of the mounting seat;

[0025] Figure 6 is an installation structural view of the handrail assembly and the connecting seat;

[0026] The reference signs are as follows: 1 - mounting seat, 1a - first cover shell, 2 - connecting seat, 3 - handrail, 2a - second cover shell, 2b - fitting part, 3 - handrail, 4 - stop block, 5 - cover, 11 - first splicing part, 12 - through hole, 13 - first plug hole, 14 - plug-in part, 15 - longitudinal guide groove, 21 - second splicing part, 22 - screw hole, 23 - second plug hole, 24 - slot, 25 - guide part, 26 - installation slot, 27 - bayonet, 31 - lifting rod, 32 - sleeve, 33 - buckle, 41 - avoiding hole, 42 - plug column. DETAILED DESCRIPTION

[0027] In order to make the above objects, features and advantages of the present application more clearly understood, the present application will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0029] The specific embodiments of this utility model are as follows:

[0030] like Figures 1-6 As shown, this embodiment provides an armrest connection mechanism, including a lifting armrest module and a mounting base 1 for mounting on a seat. The lifting armrest module includes a connecting base 2 and an armrest 3 that can be raised and lowered on the connecting base 2. A positioning structure and a splicing structure are provided between the mounting base 1 and the connecting base 2. The positioning structure includes a plug-in part 14 provided on one of the mounting base 1 and the connecting base 2, and a slot 24 provided on the other of the mounting base 1 and the connecting base 2. The splicing structure includes a first splicing part 11 provided on one of the mounting base 1 and the connecting base 2, and a second splicing part 21 provided on the other of the mounting base 1 and the connecting base 2. The second splicing part 21 is provided with a screw hole 22, and the first splicing part 11 is provided with a through hole 12 corresponding to the position of the screw hole 22.

[0031] When connecting the lifting armrest module to the mounting base 1, the plug part 14 is inserted into the slot 24 and the screw hole 22 is aligned with the through hole 12. The threaded fastener passes through the through hole 12 and is locked into the screw hole 22 to connect the lifting armrest module to the mounting base 1. The threaded fastener includes, but is not limited to, bolts, screws, etc. This design ensures that the lifting armrest module remains stable on the mounting base 1 when it is installed on the seat, avoiding misalignment of the holes during armrest installation and improving the quality and efficiency of lifting armrest assembly.

[0032] Furthermore, in this embodiment, the slot 24 and the second splicing part 21 are provided on the connecting seat 2, and the plug-in part 14 and the first splicing part 11 are provided on the mounting seat 1 for explanation. In order to facilitate the plug-in part 14 to be plugged into the slot 24, in this embodiment, the plug-in part 14 is located at the upper end of the mounting seat 1 and extends longitudinally. The connecting seat 2 is provided with a mating part 2b extending toward the mounting seat 1. The slot 24 is located at the lower end of the mating part 2b and corresponds to the position of the plug-in part 14, so that the operator can control the plug-in part 14 to be plugged into the slot 24 from top to bottom, so that the entire lifting handrail module remains stable on the mounting seat 1 and facilitates the installation of threaded fasteners.

[0033] Further, in order to improve the assembly efficiency, the guide mounting structure is arranged between the mounting base 1 and the connecting base 2, the guide mounting structure comprises a longitudinal guide slot 15 arranged on one of the mounting base 1 and the connecting base 2, and a guide part 25 arranged on the other one of the mounting base 1 and the connecting base 2, in this embodiment, the longitudinal guide slot 15 is arranged on the mounting base 1, and the guide part 25 is arranged on the connecting base 2; during the assembly, the lifting handrail module is controlled to slide the guide part 25 in the longitudinal guide slot 15, so that the plug-in part 14 is smoothly and quickly inserted into the plug-in slot 24.

[0034] Further, the design of the splicing structure in this embodiment is as follows: the first splicing part 11 is arranged at the position close to the lower end of the mounting base 1, the second splicing part 21 is arranged at the position close to the lower end of the connecting base 2, and the first splicing part 11 extends towards the connecting base 2 along the transverse direction; the second splicing part 21 extends towards the mounting base 1 along the transverse direction, the through hole 12 extends through the first splicing part 11 along the longitudinal direction; the second splicing part 21 extends towards the mounting base 1 along the transverse direction, the screw hole 22 extends along the longitudinal direction on the second splicing part 21, the first splicing part 11 and the second splicing part 21 are overlapped in the up-down direction, so that the screw hole 22 is aligned with the through hole 12; the threaded fastener can be inserted into the screw hole 22 through the through hole 12.

[0035] Further, after the lifting handrail module is connected to the mounting base 1, the positioning structure and the splicing structure need to be shielded, so as to avoid the entry of sundries and ensure the simple appearance of the seat, the mounting base 1 in this embodiment comprises a first cover shell 1a, the first splicing part 11 and the plug-in part 14 are arranged in the first cover shell 1a, the connecting base 2 comprises a second cover shell 2a, the second splicing part 21 and the plug-in slot 24 are arranged in the second cover shell 2a, in order to facilitate the operation, the first cover shell 1a and the second cover shell 2a are both open to the left side or the right side, so as to be mutually closed; when the plug-in part 14 is inserted into the plug-in slot 24 and the screw hole 22 is aligned with the through hole 12, the first cover shell 1a and the second cover shell 2a are closed to form a shell, so as to shield the splicing structure and the positioning structure; when the first cover shell 1a and the second cover shell 2a are closed to form the shell, the matching part 2a also seals the upper end of the first cover shell 1a, so as to ensure the simple and generous appearance of the seat.

[0036] Further, in order to facilitate the locking of the threaded fastener, the position corresponding to the splicing structure on the shell is outwardly open, but the open part will form an opening to affect the sealing effect of the whole shell, therefore, in order to simultaneously ensure the convenient installation of the threaded fastener and the sealing effect of the shell, the position outwardly open on the shell is provided with a blocking block 4, the blocking block 4 is provided with an avoiding hole 41 corresponding to the position of the screw hole 22, the avoiding hole 41 is a counterbore, so as to hide the nut; the threaded fastener is inserted into the screw hole 22 through the avoiding hole 41 and the through hole 12, so as to seal the splicing structure in the shell; without affecting the installation of the threaded fastener, the splicing structure is prevented from being exposed to affect the appearance of the seat.

[0037] Further, in order to facilitate assembly, the number of screw holes 22, through holes 11 and escape holes 41 in the embodiment is single, so that the lifting handrail module can be fixed on the mounting seat 1 by locking a single threaded fastener, without the need to install multiple threaded fasteners, thereby saving assembly time.

[0038] Further, in order to prevent the block 4 from loosening relative to the splicing structure and ensure the stability of the structure of the shell and the block 4, an anti-loosening assembly is arranged between the block 4 and the splicing structure, which comprises a plug column 42 arranged on the block 4, a first plug hole 13 and a second plug hole 23 arranged on the first splicing part 11 and the second splicing part 21 respectively, and the positions of the first plug hole 13, the second plug hole 23 and the plug column 42 correspond, and the number of each is two; the plug column 42 is inserted into the first plug hole 13 and the second plug hole 23, and after plugging, the block 4, the first splicing part 11 and the second splicing part 21 are relatively fixed, so that the structure of the entire shell and the block 4 is more stable.

[0039] Further, the mounting structure of the handrail 3 is as follows: the connecting seat 2 is provided with a mounting slot 26 which is open at the upper end and extends vertically, the mounting slot 26 is provided with a handrail assembly, the handrail assembly comprises a sleeve 32 fixedly connected in the mounting slot 26, and the handrail 3 is connected to the sleeve 32 in a lifting manner; specifically, the handrail 3 is connected with a lifting rod 31 at the lower end, the lifting rod 31 is connected to the sleeve 32 in a lifting manner, and a gear adjustment assembly is arranged between the sleeve 32 and the lifting rod 31; the gear adjustment assembly can lock or unlock the lifting rod 31 in place through the ratchet cooperation structure, so as to adapt to different support heights; the specific structure of the handrail assembly can refer to the handrail patent with the publication number CN209135882, which will not be described here.

[0040] Further, the inner and outer sides of the sleeve 32 are provided with buckles 33, the connecting seat 2 is provided with a tubular part, the inner side of the tubular part faces the mounting seat 1, and the outer side is surrounded by the second cover 2a, and the mounting slot 26 is arranged on the tubular part; the inner and outer sides of the tubular part are provided with buckling holes 27 corresponding to the buckles 33, the buckling holes 27 communicate with the mounting slot 26; the buckles 33 are clamped in the buckling holes 27, so that the sleeve 32 is detachably connected in the mounting slot 21, so as to facilitate replacement or maintenance.

[0041] Further, since the outer buckling hole 27 is surrounded by the second cover 2a and is difficult to disassemble, a through disassembly hole is arranged on the second cover 2a, the position of the disassembly hole corresponds to the outer buckling hole 27, when disassembling, a wrench can be inserted into the disassembly hole to separate the buckle 33 from the buckling hole 27; at the same time, in order to ensure that the appearance of the handrail is simple and elegant, a cover 5 is connected at the disassembly hole to shield the outer buckling hole 27 and the buckle 33.

[0042] Further, the application provides a seat comprising the armrest connecting mechanism, wherein the mounting seat 1 can be arranged on the left and right sides of the seat back or seat cushion of the seat by means of screw connection, welding or welding fixation; for example, the seat in the embodiment is provided with a wire pipe for facilitating the wire to pass through, and the two mounting seats 1 are welded and fixed at the two ends of the wire pipe, so as to facilitate the wire to be arranged to control the armrest.

[0043] The above description of the application and its embodiments is illustrative, and is not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the application, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the above description, without departing from the creative purpose of the application, similar structural modes and embodiments can be designed without creativity, which should all belong to the protection scope of the application.

Claims

1. A handrail connection mechanism, characterized in that The application relates to a lifting armrest module and a mounting base (1) arranged on a seat, wherein the lifting armrest module comprises a connecting base (2) and an armrest (3) capable of lifting on the connecting base (2); the mounting base (1) and the connecting base (2) are provided with a positioning structure and a splicing structure, the positioning structure comprises a plug-in part (14) arranged on one of the mounting base (1) and the connecting base (2) and a slot (24) arranged on the other one of the mounting base (1) and the connecting base (2); the splicing structure comprises a first splicing part (11) arranged on one of the mounting base (1) and the connecting base (2) and a second splicing part (21) arranged on the other one of the mounting base (1) and the connecting base (2), wherein the second splicing part (21) is provided with a screw hole (22), and the first splicing part (11) is provided with a through hole (12) corresponding to the position of the screw hole (22); The plug-in part (14) is inserted into the slot (24) and the screw hole (22) is aligned with the through hole (12), a threaded fastener is passed through the through hole (12) and locked into the screw hole (22), and the lifting armrest module is connected with the mounting base (1).

2. A handrail connection mechanism according to claim 1, characterised in that: The slot (24) and the second splicing part (21) are arranged on the connecting base (2), and the plug-in part (14) and the first splicing part (11) are arranged on the mounting base (1).

3. A handrail connection mechanism according to claim 2, wherein: The plug-in part (14) is located at the upper end of the mounting base (1) and extends longitudinally, the connecting base (2) is provided with a matching part (2b) extending towards the mounting base (1), and the slot (24) is arranged at the lower end of the matching part (2b) and corresponds to the position of the plug-in part (14).

4. A handrail connection mechanism according to claim 3, wherein: The mounting base (1) and the connecting base (2) are provided with a guide mounting structure, the guide mounting structure comprises a longitudinal guide slot (15) arranged on one of the connecting base (2) and the mounting base (1) and a guide part (25) arranged on the other one of the connecting base (2) and the mounting base (1), the guide part (25) slides in the longitudinal guide slot (15), and the plug-in part (14) is inserted into the slot (24).

5. A handrail connection mechanism according to claim 2, wherein: The first splicing part (11) extends towards the connecting base (2) in the transverse direction; the second splicing part (21) extends towards the mounting base (1) in the transverse direction, the first splicing part (11) and the second splicing part (21) are overlapped in the up-down direction, and the screw hole (22) is aligned with the through hole (12).

6. A handrail connection mechanism according to claim 2, wherein: The mounting base (1) comprises a first cover (1a), the first splicing part (11) and the plug-in part (14) are located in the first cover (1a), the connecting base (2) comprises a second cover (2a), the second splicing part (21) and the slot (24) are located in the second cover (2a), when the plug-in part (14) is inserted into the slot (24) and the screw hole (22) is aligned with the through hole (12), the first cover (1a) and the second cover (2a) are combined into a shell body, and the splicing structure and the positioning structure are shielded.

7. A handrail connection mechanism according to claim 6, wherein: The position corresponding to the splicing structure on the shell body is outwardly open, a stop block (4) is arranged at the outwardly open position of the shell body, the stop block (4) is provided with an avoiding hole (41) corresponding to the position of the screw hole (22), a threaded fastener is passed through the avoiding hole (41) and the through hole (12) and locked into the screw hole (22), and the stop block (4) seals the splicing structure in the shell body.

8. A handrail connection mechanism according to claim 7, characterised in that: The anti-loosening assembly is arranged between the stop block (4) and the splicing structure, and comprises an insertion column (42) arranged on the stop block (4), a first insertion hole (13) and a second insertion hole (23) arranged on the first splicing part (11) and the second splicing part (21) respectively, and the insertion column (42) is inserted into the first insertion hole (13) and the second insertion hole (23) in position correspondence.

9. A handrail connection mechanism according to claim 1, characterised in that: The connecting seat (2) is provided with a mounting groove (26) which is open at an upper end and extends vertically, and a handrail assembly is arranged in the mounting groove (26), wherein the handrail assembly comprises a sleeve (32) fixedly connected in the mounting groove (26), and the handrail (3) is connected in the sleeve (32) in a lifting manner.

10. A seat, characterized by The handrail connecting mechanism comprises the handrail connecting mechanism according to any one of claims 1-9. The anti-loosening assembly is arranged between the stop block (4) and the splicing structure, and comprises an insertion column (42) arranged on the stop block (4), a first insertion hole (13) and a second insertion hole (23) arranged on the first splicing part (11) and the second splicing part (21) respectively, and the insertion column (42) is inserted into the first insertion hole (13) and the second insertion hole (23) in position correspondence. The connecting seat (2) is provided with a mounting groove (26) which is open at an upper end and extends vertically, and a handrail assembly is arranged in the mounting groove (26), wherein the handrail assembly comprises a sleeve (32) fixedly connected in the mounting groove (26), and the handrail (3) is connected in the sleeve (32) in a lifting manner. The handrail connecting mechanism comprises the handrail connecting mechanism according to any one of claims 1-9.

Images